Finding the Fourth Proportional to 13,317.86, 19,974.90 and 5,423.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,317.86 : 19,974.90 = 5,423.82 : x
2. Step 2: Convert to fraction form
   13,317.86/19,974.90 = 5,423.82/x
3. Step 3: Cross multiply
   13,317.86x = 19,974.90 × 5,423.82
4. Step 4: Simplify right side
   13,317.86x = 108,340,162.24
5. Step 5: Solve for x
   x = 108,340,162.24/13,317.86
6. Step 6: Final answer
   x = 8,134.95